GPA Calculator
Enter your course grades and credit hours to compute your GPA on a 4.0 scale.
By Stuart Mathieson · Updated October 2026
Results
Unweighted GPA
Standard 4.0 scale
Weighted GPA
Honors +0.5, AP/IB +1.0 (no bonus for an F)
Total Credits
Note: GPA calculations are estimates and may not reflect your institution's exact grading policies.
How the GPA calculator works
Each grade is converted to grade points on the 4.0 scale and multiplied by the course's credit hours. The results are added up and divided by your total credit hours - so a 4-credit course counts for more than a 1-credit course.
For the weighted GPA, honors courses get 0.5 extra points and AP or IB courses get 1.0 extra point before averaging. Failing grades (F) don't get the bonus.
| Grade | Points | Grade | Points | Grade | Points |
|---|---|---|---|---|---|
| A+ / A | 4.0 | B | 3.0 | C- | 1.7 |
| A- | 3.7 | B- | 2.7 | D+ | 1.3 |
| B+ | 3.3 | C+ | 2.3 | D | 1.0 |
| C | 2.0 | D- / F | 0.7 / 0.0 |
Worked example
| Course | Grade | Credits | Points × credits | Weighted |
|---|---|---|---|---|
| English | A | 3 | 12.0 | 12.0 |
| Biology | B+ | 4 | 13.2 | 13.2 |
| AP US History | A- | 3 | 11.1 | 14.1 |
| Spanish (Honors) | B | 3 | 9.0 | 10.5 |
| Total | 13 | 45.3 | 49.8 |
Unweighted GPA = 45.3 ÷ 13 = 3.48. Weighted GPA = 49.8 ÷ 13 = 3.83, because AP US History gains 1.0 point per credit and the honors course 0.5.
Why your GPA might differ from your school's
- Different scales. Some schools give 4.3 for an A+, don't use plus and minus grades, or set different percentage cut-offs for each letter.
- Different weighting. Some schools put AP and IB courses on a 5.0 scale, others add less, and some don't weight at all.
- Colleges recalculate. Many colleges recalculate applicants' GPAs with their own method - often removing or changing the weighting - so they can compare students from different schools fairly.
- Cumulative GPA. To find your cumulative GPA, enter every course from every term you want to include, with its credits.
Frequently asked questions
What's the difference between weighted and unweighted GPA?
Unweighted GPA treats every course equally on a 4.0 scale. Weighted GPA gives extra credit for Honors and AP/IB courses, which is why it can exceed 4.0.
What grading scale does this use?
The standard US 4.0 scale with plus/minus grades (A+ and A both count as 4.0, A- as 3.7, and so on down to F).
Can I add or remove courses?
Yes - use "Add Course" for as many classes as you need, and remove any row you don't need with its Remove button.
How do I calculate my cumulative GPA?
Enter all of your courses from every term, each with its credit hours. Because the calculator weights each course by its credits, this gives the same result as combining your term GPAs weighted by the credits in each term.
Sources
- How to Calculate Your GPA on a 4.0 Scale - BigFuture, College Board
- Does GPA need to be weighted or unweighted? - BigFuture, College Board